Broom winding machine



May 31, 1960 B. KOBACK BROOM WINDING MACHINE 3 Sheets-Sheet 1 Filed July 16, 1958 mm on mm mm INVENTOR. BENJAMIN KOBACK nmww ATTORNEYS May 31, 1960 s. KOBACK BROOM WINDING MACHINE 3 Sheets-Sheet 2 Filed July 16, 1958 INVENTOR. BENJAMIN KOBACK ATTORNEYS May 31, 1960 B. KOBACK BROOM WINDING MACHINE 3 Sheets-Sheet 3 Filed July 16, 1958 INVENTOR.

' E I I ATTORNEYS United States Patent BROOM WINDING MACHINE Benjamin Koback, 8028 N. Jersey St., Portland, Oreg.

Filed July 16, 1958, Ser. No. 748,857

4 Claims. (Cl. 30014) The present invention relates to broom winding machines, and is an improvement over my now pending application entitled Broom Winding Machine, Serial No. 679,358, filed August 21, 1957.

The primary object of the invention is to provide a broom winding machine for placing and binding bristles within the grooves of rotary broom cores, particularly bristles of the nylon and steel bristle type. Bristles of the nylon and steel type are very difiicult to handle, due to their springy nature, requiring a positive means directing them into the grooves of the core of the broom as they are fed through the machine by the feeding chains.

One of the outstanding objects of the invention is to provide a hold down and guide bar for holding the bristles in position with respect to the feeding chains, preventing the bristles from criss-crossing one another, maintaining the bristles in proper alignment while entering the grooves of the core of the broom.

Another object of this invention is to provide in a structure of the class described-above a self-contained reel on which the binding rope is stored before wrapping the core.

A still further object of the invention is to provide in an apparatus of this type a convenient location of the controls for-controlling the operationof the machine by the operator.

Other objects and advantages will become apparent in the following specification when considered in the light of the attached drawings, in which:

Figure l is a side elevation of the invention with parts broken away for convenience of illustration.

Figure 2 is an end elevational view of the structure in Figure 1, looking to the right with parts broken away for convenience of illustration.

Figure 3 is a fragmentary top plan view with parts broken away for convenience of illustration.

Figure 4 is a fragmentary sectional view, taken on the line 4-4 of Figure 1, looking in the direction of the arrows.

Figure 5 is an enlarged fragmentary side elevation of the feeding chain.

Figure 6 is a plan view of the structure shown in Figure 5.

Figure 7 is a sectional view, taken on the line 7--7 of Figure 5, looking in the direction of the arrows.

Figure 8 is an enlarged fragmentary detail side view of the binding rope reel mechanism.

Figure 9 is a side view of the structure shown i Figure 8 looking towards the machine.

Figure 10 is a plan view of the basic platform and framework of the bristle feeding assembly, with parts omitted.

Figure 11 is a fragmentary top plan detail of the mounting of one end of the spacer bar mechanism.

Figure 12 is a semi-diagrammatic illustration of the spacer bar in relation to the bristles being fed through the bristle winding unit by the feed chains.

Referring now to the drawings in detail wherein like Extending upwardly from the base framework F are vertical frame members 12.

The frame members 12 extend upwardly at an angle from the points 13 and '14 and are joined to a horizontal-frame member 15 by welding.

A second horizontally disposed frame member 16 is fixedly secured between the vertical portions of the end frame members 12 and 14. The horizontal members 15 and 16 provide rails on which is mounted the carriage assembly C. I

The carriage assembly C includes spaced apart longitudinal frame members 17 and 18 secured together on their upper edges by angle bars 19, and on their lower edges by the angle bars 20. The upper angle bars 19 are connected together by a platform 21 to provide a I panel for supporting controls 22 for operating the machine.

Referring particularly to Figures 3 and 4, the carriage C is supported at its upper end by trunnion wheels 23, 24 and 25, which operate along the horizontal frame mem 1 ber 15. The trunnion wheels 23 and 24 are mounted form 28, extending from the point 29 to the point 30,

supported on the side frame members 31 suspended from the carriage C with their upper ends secured to the frame member 18 of the carriage C, by any suitable means.

Extending forwardly under the platform 28 are a pair of parallelly disposed frames 32 with their outer ends 33 having upwardly extending members '34 acting as sup ports for the outer end of the frames 32 in the following manner.

Brackets 35 are fixedly supported by the frame member 17 of the carriage C and are universally connected to the upper ends of the hanger assemblies 36, the lower ends of which are universally connected to the brackets 34 at 37. The hangers 36 include internally threaded members 38 in which is threaded the adjusting rod 39, adapted to be revolved by the hand wheel 40. The. hanger assembly 36 provides a means of changing the horizontal angle of the brush bristle feeding assembly B as required by the diameter of the core being wound.

Bristle feeding chains 41 are trained about driving. sprockets 42 and idler sprockets 43. The driving sprockets 42 are journalled to the under side of the platform 28 by suitable bearings and are driven from the motor 44 by drive chain 45. The motor 44 is supported to the under side of the platform 28 by hanger brackets 46. The idler sprockets 43' are journalled on the plates l 34 on stub shafts 47.

The bristle feeding chains 41, referring to Figure 3 Y particularly, converge towards the idler sprockets 43 from v the driving sprockets 42. The chains 41 have upwardly, extending fingers 48 for moving the bristles 49 along the feeding mechanism, the operation of which will be later described.

assembly -54 supported on the side members 31 of the feeding table 28. A resistance to the paying out of the cable is obtained by a brake band 55 associated with the},

brake drum 56 on the reel 53.

A'crank 57, illustrated by broken lines, maybe plied to the reel 53 for reelingthe rope 50 onto the V 3 same'before winding-the core. The rope 50 is also trained about the idler pulley 58, which guides the rope 50 down between the chains 41, beginning at the point 52 in Figure 4 and ending up within the groove 51 of the core 52; as best illustrated in Figurej4.

1 The'core'52 is mounted; between the driving shaft, 60

and'the tailstock shaft 61- in the following manner.. The

drive shaft 60'is-journalled within bearings 62 and is drivenfrom the motor" and speedreducing unit =63"by a drive chain 64; A flange 65 forms part ofthe driving towards the upper endbrea'ks over at an angle at.70'

continuing on up to the] lower beam 15 being clamped thereto by the clamping bolt 71. This will hold the same in a fixed-position,

An additional bracing is provided in the form ofthe internal threaded brace 72 fixedly secured to the vertical support 67 by any suitable means at its one end, and has theadjustingthreaded shaft 73 threaded into its op posite end and operated by the hand wheel 74. "This provides a fine adjustment for aligning the core 52 with the feeding mechanism in the operation of the machine.

The carriage C and the bristle feeding assembly B is moved along the core 52 in its operationby action of the idler wheel 75 operating within the spiral groove 51 of the core. This wheel 75 is journalled to the adjustable supporting bracket assembly 76, consisting of the pivotally and downwardly mounted frame 77 and the universal rotatably mounted form 78, which permits theidler 75 to follow either aright or left hand spiral. The position of the idler 75 is adjusted by the hand wheel bear-i,

ing assembly 79.

The main improvement of this invention over my- '82 supported-by the spacer bar 83. The bar 83 is fixedlysecured to the members 34, acting as a spacer as well as a support for the vertical guide member 82; v

Referring to Figure, 11, the end 84. of the guide bar 80 has an opening '85 somewhat larger than the guide member '82, permitting the same to raise andv lower on the member 82 freely. A pair of stationary guides 86 are also fixedly secured to the upstanding members 314'. The guides 86Lfurther assist in guiding the bristles down between the chains 41.

In order to prevent bristles from tangliug with the bristles alreadyinstalled within the spiral groove, a guard 87' is provided; Referring to Figure 2, this, guard is removably secured to one of the sockets 88 located on the side of'jthe frame members 34. The guard 87 isshifted from one side of the members 34, depending upon the way the core152 is being. wound. Its position should follow behind thev direction of travel of the bristle feeding mechanism.

Anotherguard89 is provided to shieldrthe idler wheel' 75; from' having bristles-enter, the groove in which this wheel 7'5. is operating The guard 89 fitsinto either of two sockets 90ilocated on either side of the fork 78. InFigure 4, I illustrate the guard 89 following the direction of trav il Of the feeding mechanism behind the wheel'7'5.

Referringto Figure, particularly, an adjustable guide 91;; indicated byjbroken lines, is providedv Onthe feed table 28 to act as a stop for guiding the bristles through the feeding mechanism, depending on the length of bristles being used. The guide 91 can be transferred from one side of the table 28 to the other in operation, and is adjustable by way of the slots 92. a

In the operation of this new and improved broom winding machine, the core 52 is fixedly mounted between the driving shaft 60 and thetailstock 61, the vertical support '67 being adjusted to the particular length of core 52 being wound and locked in place by the clamping bolt 71 and the hand wheel 7-4 adjusted to properly align the same. The hanger assemblies 36 are adjusted by the hand wheels 40 to position the bristle feeding assembly B to the proper position abovethecore '52 for winding the same. The free end of the rope '50 is fixedly secured to the beginning of the spiral groove 5-1 at the right hand of the machine, as looking at Figure 1, by conventional fastening means (not shown),

The feeding idler 77 is engaged in the groove 51 and adjusted to the proper position" for feeding the bristle feeding assembly B along the core 52. The bristles 49 are placed on the table 28:, referring particularly to Figures 3 and 4,1 the fingers 48; of the chains 4l'picking them up and feeding them to the right under the, rope 50, which beginsto force them downward between the chains 41 as indicated in Figure 12. t

- it has been found when winding cores with nylon or steel bristles, that it is very essential that the spacer bar 80. be employed, due to the springy action of'this type of bristle, thebar =80 preventing the bristles from crisscrossing with one another in the downward movement imparted by the rope between thechains 4*1.

As the bristles travel towards the core 52, the rope50 binds them 'within the groove '51, in the usual manner.

All automatic controls, indicated by numeral 22, are located on the carriage handy to the operator of the machine. hand corner ofthe machine, as viewed in Figure 3. From this position he can watch very carefully the winding operation, and as stated above he is adjacent his controls for stopping or starting the motor 63 or motor '44.

Having thus described the preferred embodiment of the invention, it should be understood that numerous structural modifications and adaptations may be resorted to without departing from the scope of the appended claims.

'What is claimed is: t

l. A broom winding machine for applying bristles to a broom core of the type having a spiral groove extending therealong with the bristles'fastened therein by a rope secured in the groove; comprising an elongated framework, means for supporting said core on said framework adjacent the rear thereof with the axis of said core substantially horizontal and extending longitudinally of said framework, acarriage extending from front to rear through said framework and mounted therein for move ment therein parallel to the axis of said core, said carriage sloping upwardly andrearwardly and overlying said core, a pair of spaced apart side by side related mutually converging upwardly and rearwardlysloping endless chain conveyors extending generally transversely to .the

axis of said core, a pair of spaced apart sprockets haverally upright leg with the horizontal legs of opposed,

fingers arranged in generally aligned relation, said fingers engaging bristles extending transversely of saidconyeyor chains for moving said bristles toward said core, means on said carriage, for tensioning and guiding said rope in a downwardly and .rearwardly sloping; path between said conveyor. chains during rotation of said core, a pair of The operator usually stands at the lower left stationary guides rigidly secured to said carriage in overlying relation to said chain conveyors for engaging opposite ends of said bristles maintaining said bristles in engagement with said fingers, and a guide bar on said carriage positioned between said chain conveyors and having an elongated portion thereof lying generally in a plane extending through the axes of said sprockets, said guide bar maintaining bristles engaging opposite sides thereof in engagement with said chain conveyors.

2. A device as claimed in claim 1 wherein means are provided on said carriage for pivotally mounting one end of said guide bar thereto for swinging movement of said guide bar between said conveyors.

3. A device as claimed in claim 1 wherein the means applying tension to said rope includes a drum journalled References Cited in the file of this patent UNITED STATES PATENTS Seavey et al. Oct. 11, 1955 Enchelmaier July 2, 1957 

